Table of Muscles of Mastication PDF

Preview

Summary

A table of all the muscles of mastication you need to know for the introduction to physiotherapy exam at the end of the semester....

Description

Muscles of Mastication Muscle Masseter

Origin Zygomatic arch and maxillary process of the zygomatic bone

Insertion Lateral surface of ramus of mandible

Temporalis

Bone of temporal fossa and temporal fascia

Medial pterygoid

Deep head – medial surface of lateral plate of pterygoid process and pyramidal process of palatine bone; superficial head – tuberosity of the maxilla and pyramidal process of palatine bone Upper head – roof of infratemporal fossa; lower head – lateral surface of lateral plate of the pterygoid process

Coronoid process of mandible and anterior margin of ramus of mandible almost to last molar tooth Medial surface of mandible near angle

Lateral pterygoid

Capsule to temporomandibular joint in the region of attachment to the articular disc and to the pterygoid fovea on the neck of the mandible

Innervation Masseteric nerve from the anterior trunk of the mandibular nerve (V3) Deep temporal nerves from the anterior trunk of the mandibular nerve (V3)

Function Elevation of mandible

Nerve to medial pterygoid from the mandibular nerve (V3)

Elevation and side-to-side movements of the mandible

Nerve to lateral pterygoid directly from the anterior trunk of the mandibular nerve (V3) or from the buccal branch

Protrusion and side-to-side movements of the mandible

Elevation and retraction of the mandible...